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WorksheetsQ1 Review Test
Total questions: 20
Worksheet time: 20mins
When is a material considered useful?
when it is hazardous
when it destroys the environment
when it can be reused
when it brings harm
Which of the following materials are considered harmful?
candy wrappers
broken glass
drained batteries
food cartoons
Some products are flammable and volatile liquid; these can harm your stomach and other system of your body when swallowed accidentally.
True
False
the following things are classified as nonbiodegradable except _______.
plastics
plants
tires
styro
When is a material harmful?
when material can be used many times
when the material can be used in cooking
when the material gives other uses aside from its purpose
when the material brings danger to people and environment
If the material brings harm to your health, environment, and other organisms when not used properly then this material is considered as __________.
Useful
Harmful
How's the material useful?
kills insects and pests
protects the wall and roofs
cleans dirty clothes
used in cooking food
Which materials became harmful when not properly used?
TV, computer, air conditioner, radio
electric fan, bed, table and chairs
black board, color, paper, table
muriatic acid, stain remover, clog remover
Ann take medicine more than the prescribed dosage of her doctor to speed her recovery.
Useful
Harmful
What happens to biodegradable waste when they are thrown?
Melts by the sun
Broken into pieces
Decomposed by bacteria
Flattened
Dissolving salt in water.
Chemical Change
Physical Change
Ice Melting
Chemical Change
Physical Change
Tearing Paper
Chemical Change
Physical Change
Formation of a precipitate.
Chemical Change
Physical Change
Explosion
Chemical Change
Physical Change
Growth of a plant.
Chemical Change
Physical Change
Apple core turns brown when it reacts with the oxygen in the air.
Chemical Change
Physical Change
Which of the following is a chemical change?
Breaking Glass
Molding clay into new shape.
Magnesium Burning
Melting chocolate.
Which clue in the picture tells you that it is a chemical change?
Temperatre Change
Odor Change
Color Change
When a new substance is formed with different properties than the original substance it is called a
Physical Change
Chemical Change
Freezing
Boiling
